Physics The unit of noise pollution (level) is : Ppm None of these Decibel Decimal Ppm None of these Decibel Decimal ANSWER DOWNLOAD EXAMIANS APP
Physics Atomic hydrogen has a life period of One day A fraction of a second One hour One minute One day A fraction of a second One hour One minute ANSWER DOWNLOAD EXAMIANS APP
Physics In a vacuum, all electromagnetic waves have the same Frequency Velocity Wavelenth All listed here Frequency Velocity Wavelenth All listed here ANSWER DOWNLOAD EXAMIANS APP
Physics A soap bubble shows colours when illuminated with white light. This is due to Reflection Polarisation Diffraction Interference Reflection Polarisation Diffraction Interference ANSWER DOWNLOAD EXAMIANS APP
Physics An electron microscope gives higher magnification than an optical microscope, because : The velocity of electron is smaller than that of visible light It uses more powerful lenses The wavelength of electrons is smaller as compared to the wavelength of visible light The electrons have more energy than the light particles The velocity of electron is smaller than that of visible light It uses more powerful lenses The wavelength of electrons is smaller as compared to the wavelength of visible light The electrons have more energy than the light particles ANSWER DOWNLOAD EXAMIANS APP
Physics The weight of a body acts through the centre of Both (A) and (B) Buoyancy Gravity Mass Both (A) and (B) Buoyancy Gravity Mass ANSWER DOWNLOAD EXAMIANS APP
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